Table 2.

Procedure characteristics

	Group I (n=70)	Group II (n=70)	Group III (n=70)
Pulmonary vein antrum isolation	70 (100%)	70 (100%)	70 (100%)
Cavo-tricuspid isthmus linear ablation	12 (17%)	12 (17%)	18 (26%)
Supra vena cava isolation	3 (4%)	7 (10%)	6 (9%)
Left atrial posterior wall isolation	1 (1%)	5 (7%)	56 (80%) *
Mitral isthmus linear ablation	2 (3%)	3 (4%)	4 (6%)
Low voltage zone modification	2 (3%)	0 (0%)	1 (1%)
Other atrial tachycardia	2 (3%)	2 (3%)	5 (7%)
Procedure time (min)	251±53	250±58	188±38 †
Fluoroscopic time (min)	25.1±10.0	15.1±7.3 *	13.0±5.4 *
Radiation dose (mGy)	295.0±263.0	109.6±103.5 *	110.1±89.6 *
3D-EMS (CARTO/Ensite/Rhythmia)	64/6/0	46/24/0 ‡	31/38/1 *
Contact force monitoring catheter	64 (91%)	46 (66%) ‡	69 (99%)

*p<0.0001.

†p=0.002.

‡p=0.0003.

3D-EMS, three-dimensional electroanatomical mapping systems.